* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

.login_exist {
    position: absolute;
    display: none;
    left: 500px;
    top: 144px;
    width: 400px;
    height: 312px;
    box-shadow: -5px -5px 30px 0px rgba(0, 0, 0, 0.25);
    line-height: center;
    background-color: #3975f2;
}

.text_box {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 220px;
    height: 156px;
    margin-left: -100px;
    margin-top: -78px;
}

.text_1 h3 {
    color: white;
}

.login_text_2 {
    display: inline-block;
    width: 200px;
    font-size: 15px;
    color: white;
    margin-left: 10px;
    margin-top: 20px;
}

.login_exist_submit {
    width: 100px;
    height: 37px;
    cursor: pointer;
    color: white;
    border-radius: 25px;
    border-color: rgba(0, 0, 0, 0);
    margin-left: 60px;
    margin-top: 30px;
    background-color: #3975f2;
    border: 1px solid white;
}

.login_exist_submit:hover {
    font-size: 14px;
    font-weight: 700;
}